Mechanical movement.



No. 724,101. I 'PATENTED MAR.s1;19os. J.HOFMANN.

MECHANICAL MOVEMENT.

APPLICATION FILED SEPT. 8. 1902.

N0 MODEL.

IIII IIIIIII 3y Ill-Ill] .table on journals 5 5 on a sleeve 6.

UNITED STATES P TENT OFFICE.

JOHANN I-IOFMANN, OF WEST COVINGTON, KENTUCKY, ASSIGNOR TO ERNST H.HUENEFELD, OF CINCINNATI, OHIO.

M E'CHAN lCAL MOV'EM Eur.

sPEoIFIoArrio v formingpart of Letters Patent to. 724,101, dated March31, 1903.

. Application filed September a, 1902. Serialll'o.122,523. on model.)

simple and durable construction, whereby continuous rotary motion istransferred into reciprocating rotary motion and whereby a shaft towhich the reciprocating rotary mo, tion is imparted is also permitted tobe given a reciprocating longitudinal movement, so that a device rigidlysecured to the driven shaft is permitted to have a reciprocating}movement longitudinally with the shaft and have simultaneously impartedto it a recipro- 1 eating rotary movement by improved means; v

and the invention consists in the parts and in the construction,arrangement, and combinations of parts hereinafter more fully describedand claimed.

In the drawings, Figure 1 is a side elevation of my improved device,partly broken away. Fig. 2 is a vertical section of the same, 3 taken onthe axial lines of the driving and Fig. 3 is a perspective view 2 Fig. 4

driven shafts. of the clutch-key-actuating collar. is a horizontalcross-section on the line 2 z of Fig. 2, showing the clutch. Fig. 5 is aperspective view of the driven gear-hub and its engaging face for theclutch-key. Fig. 6 is j {a perspective view of the clutch-sleeve. Fig. 1

i longitudinally of the sleeve.

7 is a perspective view of the clutch-key.

A represents a frame having an arm B ex I tending therefrom practicallyforming a fork, between the tines of which the gearing is disposed. Thearm B may be divided, as at b, for convenience in assembling the parts.

Ois a'driving-shaft having bearings l in the frame. It carries abevel-gear 2.

D is a driven shaft.

The bevel-gear 2 meshes with oppositelydisposed driven bevel-gears 3 4,loosely rota- Thejournals have enlargements 7 ,against which shoulders 8of the hub-bores are adapted to take for positioning the gears on thesleeve.

The

sleeve has a journal 9, about which a collar 10 is adapted to slide. Thecollar rests on a shoulder 11 on the sleeve and is held against tiltingby pins 12. The sleeve has a guideway 15, in which a clutch-key 16 isadapted to be reciprocated into alternate engagement with seats 17 18,shown as arranged on the hubs of the respective gears 3 4. The collarhas inclined engaging faces 21 21 22 22, forming a notch 23 and lug 24on the collar. The engaging faces are adapted to interengage with lugs29 30 on the clutch-key, whereby-the clutch-key is shiftedlongitudinally of the driven shaft into engagement with one or the otherof the seats of the gears 3 4. During the relative rotation of the keyand collar the ends of the collar take snugly between thelugs 29 3 0,and, as shown in Fig. 2, the distance between the respective inclinedfaces2l 21' and 22 22 correspond with the distance between the end facesof the collar, so that there may be a snug fit between the'end faces ofthe collar and lugs for preventing rattling and lost motion. Theinclined faces are also converging, so that the key may be alternatelythrown into engagement with the respective gears, whether thedriving-shaft is rotated in one or the other direction. The collar alsohas a radially-extending lug 31. This latter lug is arranged to strikethe inner end 32 of the driving-shaft O or other suitable obstructionfor arresting the rotation of the collar, and thereby causing theinclined engaging face on the collar to interengage with the lugs orpins on the key for shifting the key to a difierent plane The drivenshaft is adapted to take through a longitudinal aperture 33 of thesleeve 6. The shaft and aperture are shown square, and the driving-shaftis permitted to have a longitudinal movement in the sleeve, whilerotating with it alternately in reverse directions. A suitable actuateddevice (shown at E) maybe secared to the driven shaft for havingimparted to it the alternate reverse rotations of the shaft, whilepermitting it to reciprocate longitudinally with the shaft. Suchconstruction is especially useful in various mechanismsfor instance, ina so-called washingmachine, in which the actuated device E wouldcorrespond with the rubber and the driven shaft D with the rubber-post.The rubber being secured to the lower end of the rubber-post, the rubberwill automatically raise and lower with the quantity of Wash in the tuband carry the rubber-post with it, so that the post may not extend belowthe rubber when the latter is'raised, and thereby cause tearing of theclothes by having the clothes wrap around the post by reason of therotations of the rubber.

The driving-shaft may carry a suitable pulley, wheel, or handle fordriving it either by hand or power.

In operation the turning of the shaft 0 continuously in one directionwill cause the bevel-gear 2 to rotate continuously in the same directionand the bevel-gears 3 4. to continuously rotate in opposite directions.The gears 3 4 being loosely mounted on the sleeve 6 rotate upon thesleeve; but when the key 16, which slides in the way on the sleeve,ongages the seat of either gear 3 or 4 that gear will be rotativelyconnected with the sleeve and shaft. This engagement is caused by thecollar 10, which is disposed loosely between the pins orlugs 29 30, theinclined engaging faces of the collar interengaging with the pins whenthe collar is arrested by having its lug 81 strike the end of thedriving shaft. Each side of the lug acts as a striking-face in reversingmotion. The relative number of revolutions between the driving anddriven shafts may depend on the relative size of the driving and drivengears. The distance between the striking-faces for causing shifting ofthe key may determine the quantity of revolution of the driven shaftbetween the reversals of its motion. The lug 31 may be provided with arubber or other suitable washer.

In my'improved construction the reversal of motion in the driven shaftmay be accomplished instantly without jar by simple means of few partsof economical and durable construction. The revolutions of thedrivingshaft may be reversed at any point in the revolution withoutdanger of injury to or disarrangement of the mechanism. If desired, theshaft may be rigidly secured to the sleeve or the shaft itself assumethe outward form of the sleeve, in which case the longitudinal movementof the driven shaft will be dispensed with. The sleeve or shaft forms ashank about which the oppositely-disposed gears are loosely journaled.In the form shown I have provided the upper end of the driven shaft witha handle 34. and have provided the driven shaft with a hole 35intermediate of its ends, so that the driven shaft may be raisedlongitudinally and a pin inserted in the hole for preventing itsretraclion, so as, for instance, to position the rubber of awashing-machine adjacent to the lid of the machine out of contact withthe clothes for convenience in raising or lowering the lid.

. Having thus fully described myinvention,

what I claim as new, and desire to secure by Letters Patent, is-

1. The combination of a pair of gears, a shaft about which the latterare loosely mounted, a shiftable key, a collar between the pair ofgears, each of the pair of gears having a seat for the key, the collarand key provided with mutual engaging faces for shifting said key, meansfor arresting the rotation of the collar for alternately causingoperative engagement between the key and the respective gears of thepair of gears, and means for actuating the gears in opposite directions.

2. The combination of a pair of gears, a sleeve about which the latterare loosely journaled, a shiftable key, a shaft slidable longitudinallyin the sleeve but rotating therewith, a collar between the pair ofgears, each of the pair of gears having a seat for the key, said collarand key having mutual engaging means, one of said engaging meansconsisting of inclined engaging faces and arranged for causing shiftingof said key, means for arresting the rotation of the collar foralternately causing operative engagement between the key and therespective gears of the pair of gears, and means for actuating the gearsin opposite directions.

3. Thecombination of a pair of gears, a sleeve about which the latterare loosely journaled, means for actuating the gears in 01)- positedirections, a shiftable key, a shaft slidable longitudinallyin thesleeve but rotating therewith, a collar between the pair of gears, eachof the pair of gears having a seat for the key, the collar and keyhaving inclined engaging faces and contacting means for the latterfaces,means for arresting the rotation of the collar thereby causingengagement be tween said faces and contacting means for alternatelyengaging the key with the respective gears of the pair of gears, and anactuated device rigidly secured to the end of the shaft.

4. The combination of a loosely-mounted pair of gears having a commonaxis, each of the gears having a key-seat, means for actu ating thegears in opposite directions, a key 7 between the gears adapted toengage with the seats, a collar taking thereabout between the gears, thecollar and key having inclined faces and engaging means for the latterfaces, means for arresting the rotation of the collar and thereby actingwith the inclined face and engaging means for alternately shifting thekey into the seats on the respective gears.

5. The combination of a rotatable part, loosely-journaledoppositely-disposed gears having axes coincident with the axis of therotatable part, means for actuating the gears in opposite directions,the rotatable part having a keyway longitudinal thereof, a key betweenthe pair of gears slidable in the keyway, each of the pair of gearshaving a key-seat, a collar loosely journaled about the rotatable l'COpart between the pair of gears, the collar having engaging faces indifierent planes longitudinal of the rotatable part, the key havingloosely journaled thereon, a gear meshing therewith for rotating thesame in opposite directions, the sleeve having a keyway 10ngitudinalthereof, a key between the pair of gears slidable in the keyway, each ofthe pair of gears having a key-seat, a collar loosely journaled aboutthe sleeve between the pair of gears, the collar having engaging facesin different planes longitudinal of the sleeve,the key having engagingmeans for said faces, and means for arresting the rotation of the collarand thereby shifting the key, with a shaft slidable longitudinally inthe sleeve and rotating therewith.

7. Thecombinationwithaframe,ofasleeve journaled therein,oppositely-disposed bevelgears loosely jonrnaled thereon, a gear meshingtherewith for rotating the same in opposite directions,the sleeve havinga keyway lon gitudinal there0f,a key slidable therein, each of the pairof gears having a key-seat, a collar loosely journaled about the sleevebetween the pair of bevel-gears, the collar having inclined engagingfaces and the key having engaging means for the latter faces coacting tocause longitudinal shifting of the key into alternate engagement withthe respective seats of the pair of gears, and means for arresting therotation of the collar, with a shaft slidable longitudinally of thesleeve and rotating therewith, an actuated device rigidly secured to itsend, the shaft having an aperture intermediate of its ends forpositioning the actuated device with relation to the gears.

8. The combination of a pair of gears having coincident axes, means foractuating the gears in opposite directions, a shiftable key, each gearhaving a seat for the key, a collar between the gears having converginginclined faces, the key having engaging faces for the latter faces, astop for arresting the collar and thereby causing the key to bealternately engaged with the respective seats of the pair of gears.

9. The combination of a pair of gears, a shaft about which the latterare loosely mounted, a shiftable key, a collar between the pair ofgears, each of the pair of gears having a seat for the key, said collarand key having mutual engaging means, one of said engaging meansconsisting of inclined engaging faces and arranged for causing shiftingof said key, means for arresting the rotation of the collar foralternately causing operative engagement between the key and therespective gears of the pair of gears, and means for ac-' tuating thegears in opposite directions.

In witness whereof I have signed my name hereto in the presence of twosubscribing witnesses.

J OHANN HOFMANN. Witnesses:

AUGUST F. HERBSLEB, RAYMOND MoELLER.

